Serious bass where nothing else fits — a true high-output 6.5" sub for the tightest builds.

This is the DC Audio M4 6.5" subwoofer, built for the tightest installs out there. As single cab builds and modern trucks keep shrinking interior space, the demand for real bass in extremely limited airspace has exploded — and most 6.5" subs are toys. This one isn't. With 300W RMS in a genuine high-output 6.5" design, it brings real low end to spaces where a bigger sub simply won't go.

Behind a seat, under a bench, in a tiny sealed or ported box — this is how you get bass in a build with no room. Don't expect a 6.5" to move air like a 15, but for its size, the M4 6.5" hits harder than anything you'd expect from that footprint. Available in dual 2-ohm or dual 4-ohm to match your amp and wiring.

Why It Works

• 300W RMS — a true high-output 6.5", not a toy sub.
• Ultra-compact — real bass in extremely limited airspace.
• Built for tight builds — behind-seat, single cab, and no-room installs.
• Hits above its size — serious low end for a 6.5" footprint.
• Dual 2Ω or dual 4Ω — pick the impedance that matches your amp and wiring.

What You Need To Know

• 6.5" subwoofer, 300W RMS, compact high-output design.
• Built for the tightest installs — behind-seat, single cab, small sealed or ported box.
• Choose your impedance before ordering: Dual 2 Ohm or Dual 4 Ohm.
• Pairs with a properly-sized enclosure and enough amp power to feed it.

Not sure which impedance fits your amp or what box to run it in? Text 530-327-8811 or email blazinbiddlesoffroad@gmail.com — happy to help you set it up right.